Hi there!
My function isArray(x) evaluates different results in Firefox (version
15.0.1, Firefox for Linux Mint, mint - 1.0) and Firebug (version 1.10.6).
In particular, isArray([2,4,6]) returns true in Firefox but false in
Firebug.
More detailed, I have the following HTML file
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html" charset="ISO-8859-1">
<script type="text/javascript">
function isArray(x) { return (x.constructor && x.constructor ===
Array); }
</script>
</head>
<body>
<script>
document.write(isArray([2,4,6]));
</script>
</body>
</html>
When I load this in Firefox, it shows
true
as expected.
But when I open the Firebug console and I enter
isArray([2,4,6])
the answer is
false
This is even more strange, as the input of
[2,4,6].constructor && [2,4,6].constructor === Array
returns
true
What is going on?
Thank you in advance,
Cheers, Thomas
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